Abstract
The pyrolysis of a mixture of methyl esters from rapeseed oil has been studied in a tubular reactor between 550 and 850°C and in dilution with nitrogen. A specific device for the condensation of cracking effluents was used for the fractionated recovery of liquid and gaseous effluents, which were analyzed on-line by an infrared analyzer and by gas chromatography. The cracking products in the liquid effluent were identified by gas chromatography/mass spectrometry coupling. The effects of temperature on the cracking reaction were studied for a constant residence time of 320 ms and a constant dilution rate of 13 moles of nitrogen/mole of feedstock. The principal products observed were linear 1-olefins,n-paraffins, and unsaturated methyl esters. The gas fraction also contained CO, CO2, and H2. The middle-chain olefins (C10–C14 cut) and short-chain unsaturated esters, produced with a high added value, had an optimum yield at a cracking temperature of 700°C.
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Billaud, F., Dominguez, V., Broutin, P. et al. Production of hydrocarbons by pyrolysis of methyl esters from rapeseed oil. J Am Oil Chem Soc 72, 1149–1154 (1995). https://doi.org/10.1007/BF02540981
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DOI: https://doi.org/10.1007/BF02540981